(In reply to Dieter Nützel from comment #53)

> If you do NOT 'make mrproper' and change only radeon/amdgpu stuff it should
> only take some minutes (seconds) on your system/CPU.

I was dumb-enough that last time I have cleaned the kernel build dir of mine to
save some space haha. This way it took around 50 minutes.

> > This seems to be the real core of the issue.
> 
> We hear from you. ;-)

I am testing right now, at least the system and X have started but will try
some games and look for what the logs say. I have also added some extra logging
for my liking just to gain more insightful information as I actually have two
ideas for fixing this.